Home / 136,137.48-187,842.80-82,427.46

Finding the Fourth Proportional to 136,137.48, 187,842.80 and 82,427.46

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Solution

The fourth proportional to 136,137.48, 187,842.80 and 82,427.46 is: 113,733.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,137.48 : 187,842.80 = 82,427.46 : x
  2. Step 2: Convert to fraction form
    136,137.48/187,842.80 = 82,427.46/x
  3. Step 3: Cross multiply
    136,137.48x = 187,842.80 × 82,427.46
  4. Step 4: Simplify right side
    136,137.48x = 15,483,404,471.15
  5. Step 5: Solve for x
    x = 15,483,404,471.15/136,137.48
  6. Step 6: Final answer
    x = 113,733.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.